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comparison env/lib/python3.7/site-packages/rdflib/tools/rdf2dot.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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-1:000000000000 0:26e78fe6e8c4
1 """
2 A commandline tool for drawing RDF graphs in Graphviz DOT format
3
4 You can draw the graph of an RDF file directly:
5
6 .. code-block: bash
7
8 rdf2dot my_rdf_file.rdf | dot -Tpng | display
9
10 """
11
12 import rdflib
13 import rdflib.extras.cmdlineutils
14
15 import sys
16 import cgi
17 import collections
18
19 from rdflib import XSD
20
21 LABEL_PROPERTIES = [rdflib.RDFS.label,
22 rdflib.URIRef("http://purl.org/dc/elements/1.1/title"),
23 rdflib.URIRef("http://xmlns.com/foaf/0.1/name"),
24 rdflib.URIRef("http://www.w3.org/2006/vcard/ns#fn"),
25 rdflib.URIRef("http://www.w3.org/2006/vcard/ns#org")
26 ]
27
28 XSDTERMS = [
29 XSD[x] for x in (
30 "anyURI", "base64Binary", "boolean", "byte", "date",
31 "dateTime", "decimal", "double", "duration", "float", "gDay", "gMonth",
32 "gMonthDay", "gYear", "gYearMonth", "hexBinary", "ID", "IDREF",
33 "IDREFS", "int", "integer", "language", "long", "Name", "NCName",
34 "negativeInteger", "NMTOKEN", "NMTOKENS", "nonNegativeInteger",
35 "nonPositiveInteger", "normalizedString", "positiveInteger", "QName",
36 "short", "string", "time", "token", "unsignedByte", "unsignedInt",
37 "unsignedLong", "unsignedShort")]
38
39 EDGECOLOR = "blue"
40 NODECOLOR = "black"
41 ISACOLOR = "black"
42
43
44 def rdf2dot(g, stream, opts={}):
45 """
46 Convert the RDF graph to DOT
47 writes the dot output to the stream
48 """
49
50 fields = collections.defaultdict(set)
51 nodes = {}
52
53 def node(x):
54
55 if x not in nodes:
56 nodes[x] = "node%d" % len(nodes)
57 return nodes[x]
58
59 def label(x, g):
60
61 for labelProp in LABEL_PROPERTIES:
62 l = g.value(x, labelProp)
63 if l:
64 return l
65
66 try:
67 return g.namespace_manager.compute_qname(x)[2]
68 except:
69 return x
70
71 def formatliteral(l, g):
72 v = cgi.escape(l)
73 if l.datatype:
74 return '"%s"^^%s' % (v, qname(l.datatype, g))
75 elif l.language:
76 return '"%s"@%s' % (v, l.language)
77 return '"%s"' % v
78
79 def qname(x, g):
80 try:
81 q = g.compute_qname(x)
82 return q[0] + ":" + q[2]
83 except:
84 return x
85
86 def color(p):
87 return "BLACK"
88
89 stream.write("digraph { \n node [ fontname=\"DejaVu Sans\" ] ; \n")
90
91 for s, p, o in g:
92 sn = node(s)
93 if p == rdflib.RDFS.label:
94 continue
95 if isinstance(o, (rdflib.URIRef, rdflib.BNode)):
96 on = node(o)
97 opstr = "\t%s -> %s [ color=%s, label=< <font point-size='10' " + \
98 "color='#336633'>%s</font> > ] ;\n"
99 stream.write(opstr % (sn, on, color(p), qname(p, g)))
100 else:
101 fields[sn].add((qname(p, g), formatliteral(o, g)))
102
103 for u, n in list(nodes.items()):
104 stream.write("# %s %s\n" % (u, n))
105 f = ["<tr><td align='left'>%s</td><td align='left'>%s</td></tr>" %
106 x for x in sorted(fields[n])]
107 opstr = "%s [ shape=none, color=%s label=< <table color='#666666'" + \
108 " cellborder='0' cellspacing='0' border='1'><tr>" + \
109 "<td colspan='2' bgcolor='grey'><B>%s</B></td></tr><tr>" + \
110 "<td href='%s' bgcolor='#eeeeee' colspan='2'>" + \
111 "<font point-size='10' color='#6666ff'>%s</font></td>" + \
112 "</tr>%s</table> > ] \n"
113 stream.write(opstr % (n, NODECOLOR, label(u, g), u, u, "".join(f)))
114
115 stream.write("}\n")
116
117
118 def _help():
119 sys.stderr.write("""
120 rdf2dot.py [-f <format>] files...
121 Read RDF files given on STDOUT, writes a graph of the RDFS schema in DOT
122 language to stdout
123 -f specifies parser to use, if not given,
124
125 """)
126
127
128 def main():
129 rdflib.extras.cmdlineutils.main(rdf2dot, _help)
130
131 if __name__ == '__main__':
132 main()